package uy.com.csi.gestpro.filter;

import java.io.IOException;

import javax.faces.application.ResourceHandler;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class SessionFilter implements Filter {

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
	}

	@Override
	public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
		// TODO Auto-generated method stub
		HttpServletRequest request = (HttpServletRequest) req;
		HttpServletResponse response = (HttpServletResponse) res;
		HttpSession session = request.getSession(false);
		String loginMain = request.getContextPath() + "/faces/pages/main.xhtml";

		boolean loggedIn = (session != null) && (session.getAttribute("usuario") != null);
		boolean resourceRequest = request.getRequestURI().startsWith(request.getContextPath() + ResourceHandler.RESOURCE_IDENTIFIER + "/");
		if (loggedIn || resourceRequest) {
			response.sendRedirect(loginMain);
		} else {
			chain.doFilter(request, response);
		}
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
	}

}
